I have a Wonderful pomegranate that is now about 5 years old. It has grown to 12 feet tall and 12 feet wide. Currently, (without counting) it must have 40 to 50 pomegranates on it. I can't tell you about the roots, but I offer this advice, to give you an idea about the size of the tree. I have never pruned it. - Millet (868-)